The Problem of Other Minds

The topic of my paper is the virtual controversy between Leibniz and Lockeover concepts and ideas. At the end of the 17th century John Locke made a crucial contribution to semantics and philosophy: An Essay Concerning Human Understanding. The work represents a decisive turning point for the discussion about ideas and innatism. Indeed, Locke’s aim was to dismantle the Cartesian theory according to which ideas are innate in our soul. Against this onto-epistemological thesis, Locke maintains that all our knowledge starts (...) off with experience: ideas are mental representations depending on subjects’ sensual experiences and reflection skills. Some years later, in his notes on Locke’s Essay, Leibniz writes that Locke dealt with a fundamental topic: human understanding and the limits of human knowledge (NE p. 4). All we can find out about the world is determined by answering the question about what we can know; nonetheless, Leibniz argues in favor of innate ideas. My thesis is that in his opinion Locke’s empiricism can be conciliated with the assumption that there are innate ideas. (shrink)

Existentialists such as Martin Heidegger and Jean-Paul Sar- tre have offered some interesting responses to the skeptical problem of other minds. However, their contributions are sometimes overlooked in the analytic study of this problem. A traditional view may think the existentialists focus on the ethical issues among conscious minds and take for granted that individuals’ experiences are within a world with others. This paper aims to identify and reconstruct two transcendental arguments on other minds from Heidegger’s and Sartre’s philosophy. I (...) argue that their arguments are strong enough to ward off skeptics and suggest that their existential starting points and methodologies might be our best way out of the puzzle. (shrink)

This paper presents a distinctively metaphysical version of the problem of other minds. The main source of this version of the problem lies in the principle that, when it comes to consciousness, no distinction can sensibly be drawn between appearance and reality. I will argue that, unless we want to call that principle into question, we should seriously consider the possibility of accepting the conclusion that other minds are not like our own. This option is less problematic than it might (...) seem at first if we are willing to reconceive facts of consciousness as subjective rather than objective in nature. -/- . (shrink)

Theorizing about children’s early development is beset with interpretational complexities. I argue that there is a general tendency to over-interpret the experimental findings, and that one of the main causes of this is the difficulty of disengaging from our adult frame of reference when theorizing about the young child’s mind. One domain where this holds is children’s ability to differentiate themselves from others. In relation to this I first critically analyze some cases of interpretational complexities, and then apply my methodological (...) and conceptual concerns to children’s perspective-taking abilities. This has a specific bearing on the classical false-belief task, which is a perspective-taking task. Part II proposes a new, what I call, a ‘Piagetian reading’ of the false-belief test. My new interpretation of the test suggests two different ways of perspective-taking of which one is egocentric in Piaget’s sense. Concluding Part III elaborates on some implications of the proposed reading of the test for a number of findings in the Theory-of-Mind field. (shrink)

Here we examine qualities of what would be thought of as inanimate beings that lend evidence to the position that J.R.R. Tolkien’s fictional universe is animistic. Arda is full of life, and natural things in it, such as mountains and rivers, are often alive or conscious. A close look at the qualities of the stars in particular yields further evidence in favor of animism as a foundational ontology of Arda.

Philosophical Investigations, EarlyView. -/- // Abstract: In her recent book, A Different Order of Difficulty, Karen Zumhagen-Yekplé uses a resolute reading of Wittgenstein’s Tractatus Logico-Philosophicus to highlight similarities between Wittgenstein’s work and his contemporaries Virginia Woolf, James Joyce and Franz Kafka. On the basis of this reading, she claims that Wittgenstein’s early masterpiece is a modernist work. -/- This article argues that there are profound problems with the resolute reading that she offers, and it suggests that ‘traditional’ readings of the (...) Tractatus survive the criticisms she makes of them. Nonetheless, a case can still be made that Wittgenstein’s work is a modernist one, and it is a useful exercise to compare the Tractatus with modernist works from the 1920s. (shrink)

Internalism about moral responsibility is the view that moral responsibility is determined primarily by an agent's mental states; externalism is the view that moral responsibility is determined primarily by an agent's overt behaviour and by circumstances external to the agent. In a series of papers, Michelle Ciurria has argued that most if not all current accounts of moral responsibility, including Strawsonian ones, are internalist. Ciurria defends externalism against these accounts, and she argues that, in contrast to his contemporary followers, P.F. (...) Strawson himself was an externalist. I believe that Ciurria's reading of Strawson is problematic. The aim of this paper is to elucidate Strawson's position with regard to the internalism-externalism issue against the background of Ciurria's reading of him. I conclude that Strawson was neither an internalist nor an externalist about moral responsibility. I draw extensively upon the whole body of Strawson's work, much of which is sadly neglected in discussions of ‘Freedom and Resentment’, although it illuminates many of the issues discussed there. (shrink)

In the past few years, the subject of AI rights—the thesis that AIs, robots, and other artefacts (hereafter, simply ‘AIs’) ought to be included in the sphere of moral concern—has started to receive serious attention from scholars. In this paper, I argue that the AI rights research program is beset by an epistemic problem that threatens to impede its progress—namely, a lack of a solution to the ‘Hard Problem’ of consciousness: the problem of explaining why certain brain states give rise (...) to experience. To motivate this claim, I consider three ways in which to ground AI rights—namely: superintelligence, empathy, and a capacity for consciousness. I argue that appeals to superintelligence and empathy are problematic, and that consciousness should be our central focus, as in the case of animal rights. However, I also argue that AI rights is disanalogous from animal rights in an important respect: animal rights can proceed without a solution to the ‘Hard Problem’ of consciousness. Not so with AI rights, I argue. There we cannot make the same kinds of assumptions that we do about animal consciousness, since we still do not understand why brain states give rise to conscious mental states in humans. (shrink)

Questions of how we know our own and other minds, and whether metacognition and mindreading rely on the same processes, are longstanding in psychology and philosophy. In Experiment 1, children/adolescents with autism (who tend to show attenuated mindreading) showed significantly lower accuracy on an explicit metacognition task than neurotypical children/adolescents, but not on an allegedly metacognitive implicit one. In Experiment 2, neurotypical adults completed these tasks in a single-task condition or a dual-task condition that required concurrent completion of a secondary (...) task that tapped mindreading. Metacognitive accuracy was significantly diminished by the dual-mindreading-task on the explicit task but not the implicit task. In Experiment 3, we included additional dual-tasks to rule out the possibility that any secondary task (regardless of whether it required mindreading) would diminish metacognitive accuracy. Finally, in both Experiments 1 and 2, metacognitive accuracy on the explicit task, but not the implicit task, was associated significantly with performance on a measure of mindreading ability. These results suggest that explicit metacognitive tasks (used frequently to measure metacognition in humans) share metarepresentational processing resources with mindreading, whereas implicit tasks (which are claimed by some comparative psychologists to measure metacognition in nonhuman animals) do not. (shrink)

I argue that we can visually perceive others as seeing agents. I start by characterizing perceptual processes as those that are causally controlled by proximal stimuli. I then distinguish between various forms of visual perspective-taking, before presenting evidence that most of them come in perceptual varieties. In doing so, I clarify and defend the view that some forms of visual perspective-taking are “automatic”—a view that has been marshalled in support of dual-process accounts of mindreading.

Aging is an integral part of human existence. The problem of aging addresses the most fundamental coordinates of our lives but also the ones of the phenomenological method: time, embodiment, subjectivity and intersubjectivity, and even the social norms that grow into the very notion of aging as such. In my article, I delineate a phenomenological analysis of aging and show how such an analysis connects with the debate concerning personal identity: I claim that aging is not merely a physical process, (...) but is far more significantly also a spiritual one as the process of aging consists in our awareness of and conscious relation to our aging. This spiritual process takes place on an individual and on a social level, whereas the latter is the more primordial layer of this experience. This complicates the question of personal identity since it will raise the question in two ways, namely who I am for myself and who I am for the others, and in a further step how the latter experience shapes the former. However, we can state that aging is neither only physical nor only spiritual. It concerns my bodily processes as it concerns the complex reflexive structure that relates my former self with my present and even future self. (shrink)

This chapter focuses on Davidson’s discussion regarding the phenomenon of self-knowledge and its puzzling features, and how he has placed it in a central place within his philosophy. This chapter begins by providing an overview of the concept of “psychological self-knowledge,” which is considered unlike any other form of knowledge. In contrast to our knowledge of the rest of the world or our knowledge of others’ mental states, we usually know the contents of our current mental states without recourse to (...) observation or inference from evidence. Such self-knowledge is quite extraordinary from a philosophical standpoint, and its explanation poses considerable challenges that raise fundamental issues in epistemology, the philosophy of mind, and the philosophy of language. (shrink)

It is most likely for anyone to ask himself at least once if it would be possible to live in a dream? Questioning the fabric of “reality” we live in consciously was one of the main doubts man ever had. It is so likely for us to answer positive to it due to so many factors; starting from the many and various facets of reality each individual envision the world, from the enormous differences we all have while perceiving and defining (...) the reality, etc. That is why, at the conscious level, life seems almost like a dream in a dream, always hoping to wake up from the negative, unwanted version of it. That is why my assertion here, based on latest theories on consciousness and AI, aim to say that we live in between reality and dream, being “conscious” of ourselves, but not really wanting to be “aware” of what is really going on with us. (shrink)

The experiments of quantum physics indicate that an electron will change its behavior/ reality depending on whether or not the electron is being observed as if the particle is aware that it is being observed. The reality thus is presumed to be, or only to be thought of as a scenario that can be altered, changed, or imagined differently depending on the observer or the screenwriter. Our historical development made us think that the reality has as many facets as we (...) want it to have, and none is more real than the other, as long there is a self-conscious being aware of it even if it has more accuracy or it stands on more evidence or arguments each proponent can bring into it. Therefore, a world full of unseen creatures that moves and determines a child’s life is not less authentic than one full of invisible particles making the world running and moving for a scientist. Each has its proofs, trials, ways of probation, so it is entirely entitled to be considered ‘real.’ However, what happens when concurrent theories over the same circumstance pronounce several valid testimonies? Do we have to pronounce either their validity based on the evidence brought by their proponents or should we consider only one of them? On what grounds can we make either these selections? It would be wrong to say that the reality is, in fact, the construct of a multitude of layers, each with different consistency and evidence, each real and provable, therefore each entitled to be called ‘reality’? Hence, consciousness can change reality just by being aware of it. In this context, we will also take into account the story of creation and see how it fits in this context. (shrink)

Expanding the debate about empathy with human beings, animals, or fictional characters to include human-robot relationships, this paper proposes two different perspectives from which to assess the scope and limits of empathy with robots: the first is epistemological, while the second is normative. The epistemological approach helps us to clarify whether we can empathize with artificial intelligence or, more precisely, with social robots. The main puzzle here concerns, among other things, exactly what it is that we empathize with if robots (...) do not have emotions or beliefs, since they do not have a consciousness in an elaborate sense. However, by comparing robots with fictional characters, the paper shows that we can still empathize with robots and that many of the existing accounts of empathy and mindreading are compatible with such a view. By so doing, the paper focuses on the significance of perspective-taking and claims that we also ascribe to robots something like a perspectival experience. The normative approach examines the moral impact of empathizing with robots. In this regard, the paper critically discusses three possible responses: strategic, anti-barbarizational, and pragmatist. The latter position is defended by stressing that we are increasingly compelled to interact with robots in a shared world and that to take robots into our moral consideration should be seen as an integral part of our self- and other-understanding. (shrink)

How do we know about other minds on the basis of perception? The two most common answers to this question are that we literally perceive others’ mental states, or that we infer their mental states on the basis of perceiving something else. In this paper, I argue for a different answer. On my view, we don’t perceive mental states, and yet perceptual experiences often immediately justify mental state attributions. In a slogan: other minds are neither seen nor inferred. I argue (...) that this view offers the best explanation of our deeply equivocal intuitions about perception-based mental state attributions, and also holds substantial interest for the epistemology of perception more generally. (shrink)

People are systematically biased against the possibility that ideas are innate. Berent (2020) traces these attitudes to an ontological dissonance, arising from the collision of two fundamental principles of human cognition -- dualism and essentialism. Carruthers (this issue) challenges this hypothesis and attributes our empiricist bias primarily to mindreading intuitions. Here, I counter Carruthers' concerns and show that mindreading cannot be the sole source of the empiricist bias. Specifically, mindreading fails to explain why our empiricist intuitions depend on the perceived (...) immateriality of ideas. The ontological dissonance hypothesis accounts for these facts. Because essentialism requires innate traits to be material, and because, per dualism, ideas are immaterial, people conclude that ideas cannot be innate. (shrink)

This article explores three ways in which a cognitively entrenched mindreading (or 'theory of mind') system may bias our thinking as cognitive scientists. One issues in a form of tacit dualism, impacting scientific debates about phenomenal consciousness. Another leads us to think that our own minds are easier to know than they really are, influencing debates about self-knowledge, and about mindreading itself. And the third results in a bias in favour of empiricist over nativist accounts of cognitive development. The discussion (...) throughout is tentative and speculative, and can be regarded as an appeal for caution, as well as a call for further research. (shrink)

This paper evaluates Husserl’s and Merleau-Ponty’s phenomenological notion of pairing in light of a representative variety of findings and views in contemporary developmental psychology. This notion belongs to the direct social perception framework, which suggests that the fundamental access to other minds is intuitive, or perceptual. Pairing entails that the perception of other minds relies merely on first-person embodied experience and domain-general processes. For this reason, pairing is opposed to cognitive nativist views that assume specialized mechanisms for low-level mental state (...) attribution, while it is compatible with acknowledging innate affective tendencies. I criticize cognitive nativism for being based on ambiguous evidence. I argue that in early social interactions infants experience sufficient self–other similarities to ground the most primitive perception of others as minded beings. I show that pairing can account for the ontogenetically earliest perceptions of others’ actions and emotions, as well as for the earliest perception of others’ perceptions. (shrink)

In a paper published in Psychological Review, Tyler Burge has offered a unified non-mentalistic account of a wide range of social cognitive developmental findings. His proposal is that far from attributing mental states, young children attribute to humans the same kind of internal generic states of sensory registration that biologists attribute to e.g. snails and ticks. Burge’s proposal deserves close attention: it is especially challenging because it departs from both the mentalistic and all the non-mentalistic accounts of the data so (...) far. Moreover Burge has been one of the leading philosophers of mind of the past 40 years and some of his writings on the objectivity of perception display a deep understanding of the relevance of science for sharpening our understanding of the mind. After taking a close look at the developmental evidence, in particular at false-belief studies, I argue that Burge’s, 409–434, 2018) account faces severe obstacles. To give one telling example: if young children can only attribute to others sensory registrations, then it is hard to explain the evidence showing that they respond differently to an agent’s ignorance and to her false belief. (shrink)

Independently of whether an object of experience becomes a candidate for being a part of the self or a part of the external world, it is always given to us as just an object of experience. The observer-observed relation can be seen as a type of relation with many instances, both between the self and different objects of experience and between any given object of experience and different selves. The self is situated in a spatial grid, where the latter can (...) be characterised as an array of relations, of which the relata include both observers and observed. The world, understood as independent existence, including the self, is empty. However, Paolo Bozzi’s method for identifying the self and delimiting its independent existence from the external world has taught us just the opposite lesson. Bozzi’s project is to teach us how to use them, and to recognise that they allow a self to be situated in a world of objects. (shrink)

Mindreaders can ascribe representational states to others. Some can ascribe representational states – states with semantic properties like accuracy-aptness. I argue that within this group of mindreaders, there is substantial room for variation – since mindreaders might differ with respect to the representational format they take representational states to have. Given that formats differ in their formal features and expressive power, the format one takes mental states to have will significantly affect the range of mental state attributions one can make, (...) and the ease or difficulty with which one can make them. I illustrate this by considering what it would be to take mental states to be map-like in format, showing that this would result in a distinctively limited form of mindreading. I close by articulating the significance of this for the emerging picture of great ape mindreading. (shrink)

The human mind is constituted by inner, subjective, private, first-person conscious experiences that cannot be measured with physical devices or observed from an external, objective, public, third-person perspective. The qualitative, phenomenal nature of conscious experiences also cannot be communicated to others in the form of a message composed of classical bits of information. Because in a classical world everything physical is observable and communicable, it is a daunting task to explain how an empirically unobservable, incommunicable consciousness could have any physical (...) substrates such as neurons composed of biochemical molecules, water, and electrolytes. The challenges encountered by classical physics are exemplified by a number of thought experiments including the inverted qualia argument, the private language argument, the beetle in the box argument and the knowledge argument. These thought experiments, however, do not imply that our consciousness is nonphysical and our introspective conscious testimonies are untrustworthy. The principles of classical physics have been superseded by modern quantum physics, which contains two fundamentally different kinds of physical objects: unobservable quantum state vectors, which define what physically exists, and quantum operators (observables), which define what can physically be observed. Identifying consciousness with the unobservable quantum information contained by quantum physical brain states allows for application of quantum information theorems to resolve possible paradoxes created by the inner privacy of conscious experiences, and explains how the observable brain is constructed by accessible bits of classical information that are bound by Holevo's theorem and extracted from the physically existing quantum brain upon measurement with physical devices. (shrink)

Focusing on Husserl's account of a 'pairing' relation in the Cartesian Meditations and contemporary research on infant development, I argue that our most fundamental experience of other people is one of 'living through' them as perceivers engaged with the natural and cultural world that we, too, can perceive, rather than one of facing off against them as thinkers engaged with ideas that are not immediately accessible to us. I begin with Husserl's insight that we do not simply perceive other human (...) bodies; we also perceive other human bodies as perceptive. Moreover, beyond just perceiving that others are perceptive, we can also perceive them as making specific perceptual sense of their specific situation. Husserl refers to the latter relation as a 'pairing' relation; in a 'pairing', what we perceive is not other people as such but, instead, the surrounding world as perceived by these others. Next, I turn to Daniel Stern's work on infant-caregiver play periods to argue that infants' interactions with their caregivers can, from birth, take the form of the 'pairing' relation described by Husserl. I then discuss several studies of older infants to explore what impact 'pairings' may have on infants' developing perception of the world. I conclude by briefly considering how infants' relations to their caregivers must ultimately move beyond 'pairings'. (shrink)

From early infancy, structures are created in engaging with the world. Increasingly complex forms of self, other, and world emerge with shared rhythms, affective patterns and interpersonal routines, cultural norms, concepts and symbols, and so on. These open up an increasing number of possibilities for new kinds and levels of engagement and for further developing a world together. However, these same structures, becoming more rigid, salient, and perhaps reified with time, may obscure or obstruct engagement and constrain development. We explore (...) this paradoxical relationship between structure and openness to engagement and attempt to understand the process of formation and change of structures in self and its relations to the world. (shrink)

The opinions that people hold about the nature of consciousness are important not only to researchers in philosophy and science, but also in many professional fields such as clinical medicine, law, and education. However, in spite of this importance and how controversial the topic is, there is remarkably little empirical data concerning what these opinions are. Here we describe the results of a multi-year survey of university students concerning their beliefs about the nature of consciousness and about what entities are (...) conscious. We find that these students are split fairly evenly between dualists and materialists, and that they also include a significant number of idealists. Almost all of the participants attribute consciousness to other people, and the vast majority attributes it to at least some animal species but not to computers. These results, especially when combined with those from the few existing previous surveys that we review, do not support past statements in the consciousness studies literature that dualism is by far the dominant viewpoint in the general population. The results also indicate that most people resolve the problem of other minds in a way that includes some animals as being conscious. (shrink)

We sometimes use perceptual language in connection with the minds of others. In this paper I explore the extent to which we can take our language here at face value. Fred Dretske separates out a knowledge-that and a knowledge-what question in connection with our knowledge of others, and claims that we can give a perceptual account of the latter but not the former. In this paper I follow Dretske in separating out questions here, but argue that Dretske does not go (...) far enough when saying why it is that we cannot answer the knowledge- that question. I suggest we follow Wittgenstein and say that the knowledge-that question is misguided. The difference between myself and Dretske lies in the way in which we think of what needs to be in place in order for us to give an account of what another thinks or feels. (shrink)

While there has been significant philosophical debate on whether nonlinguistic animals can possess conceptual capabilities, less time has been devoted to considering 'talking' animals, such as parrots. When they are discussed, their capabilities are often downplayed as mere mimicry. The most explicit philosophical example of this can be seen in Brandom's frequent comparisons of parrots and thermostats. Brandom argues that because parrots (like thermostats) cannot grasp the implicit inferential connections between concepts, their vocal articulations do not actually have any conceptual (...) content. In contrast, I argue that Pepperberg's work with Alex (and other African grey parrots) provides evidence that the vocal articulations of at least some parrots have conceptual content. Using Frege's insight that numbers assert something about a concept, I argue that Alex's ability to answer the question "How many?" depended upon a prior grasp of conceptual content. Developing this claim, I argue that Alex's arithmetical abilities show that he was capable of using numbers as both concepts and objects. Frege's theoretical insight and Pepperberg's empirical work provide reason to reconsider the capabilities of parrots, as well as what sorts of tasks provide evidence for conceptual content. (shrink)

The article compares Kierkegaard’s and Marcel’s comprehension of existence and communication of existence. With reference to the notion of existence, both authors (independently from each other) develop the idea of a second reflection that includes a theory of communication. But whereas Kierkegaard conceives communication strictly within a first person perspective, Marcel establishes a kind of second person perspective. For this reason and despite a strong common basis in their views, different aspects of communication of existence are put forward by them.

This paper provides an answer to a specific kind of critique against Husserl's theory of intersubjectivity.

This chapter addresses the extent to which nonhuman animals are conscious. Most important perhaps is what criteria should be used in making such a determination.

This dissertation explores philosophical issues in autism and defends a new version of the enactive approach to autism and social cognition. The discussion in this dissertation centres around the question “why do autistics encounter social interaction problems?”, addressing this question in ways that raise broader philosophical issues. Within the philosophy of mind, these include the problem of other minds, the nature of emotions, and narratives and their role in understanding the self. Beyond cognition, such issues are intertwined with questions in (...) metaphysics, philosophy of science, sociopolitical and moral philosophy, and disability studies. In responding to the question “why do autistics encounter social interaction problems?”, I argue that autistic social interaction problems result from the sensorimotor differences between autistics and non-autistics. This contrasts with the response to this question given by widely-endorsed views that emphasize instead the cognitive deficits that autistic people have. Such cognitivist views, such as the theory theory and simulation theory, are the focus of my first two critical chapters. I go on to offer a critique of two approaches that go beyond the focus on mindreading in appealing to sensorimotor problems as lying at the heart of the problem. These views, interaction theory and the original enactive approach, are the focus of the next two chapters. I then turn to defend a novel form of the enactive approach in the last part of the dissertation by emphasizing the role of emotions as the capacity for us to make sense of the world and to construct the sense of self from narratives. My new approach shifts the explanatory focus from perception and motion to emotion. This maintains the advantage of the original enactive approach, while avoiding its behaviouristically limited descriptions. My account thus expands the theory’s capacity to describe and explain internal states important to self-understanding and self-expression. This allows one to approach autistic social difficulties by attending to the first-person perspective, cohering with my reliance on first-person autistic narratives as a major source of evidence that supplements traditional scientific research on autism. (shrink)

Reprinted in Colin Murray Turbayne, ed., 'A Treatise on the Principles of Human Knowledge / George Berkeley, with Critical Essays' (Bobbs-Merrill, 1970): 47-56.

Kann ein Mensch wirklich verstehen, wie es ist, eine Fledermaus zu sein? Natürlich nicht. Er kann sich nur vorstellen, wie es sich anfühlen könnte. Nagel zeigt damit dem Menschen die Grenzen seiner Erkenntnis- und Empathiefähigkeit auf. Radikal, provokativ und erhellend zugleich, ist der Essay von 1974 einer der am häufigsten zitierten philosophischen Aufsätze des 20. Jahrhunderts. Ulrich Diehl erklärt in einem Nachwort die besondere Bedeutung und spannende Wirkungsgeschichte dieses Klassikers der Philosophie des Geistes.

In traditional epistemology, psychological self-knowledge is taken to be the paradigm of privleged a priori knowledge. According to an influential incompatibilist line of thought, traditional epistemic features attributed to psychological self-knowledge are supposed to be inconsistent with content externalism. In this paper, I examine one prominent compatibilist response by an advocate of content externalism, i.e., Fred Dretske's answer tot he incompatibilist argument, based on the model of displaced perceptual knowledge. I discuss the costs and benefits of his answer.